Gas heater



Dec. 18 1923.

J. E. DAVIS GAS HEATER 2 Sheets-Sheet 1 Filed March 4. 1922 I'M. NAVNAHV w 3M M MA AVMAVMAVW. MAVM 11,477,998 J. E. DAVIS GAS HEATER Filed March 4, 1922 -2 Sheets-Sheet 2 Dem 18, 1923.

Ti i

We (MW/M Patented Dec. 18, 1923..

rates JACOB E. Di-UJ'IS, OF In-QNIGH, CHIC.

GAS HEATER.

Application filed "March 4:, 1922. Serial No. 541,147.

To all whom it may concern:

Be it known that I, JACOB E. DAVIS, a citizen of the United States, and a'resident of Trenton, in the county of Lawrence and State of Ohio, have invented certain new and useful Improvements in Gas Heaters, of which the following is a specification.

My invention relates to gas heaters or radiators, but more particularly to a heater of this type provided with a plurality of heat radiating elements or radiants.

In heaters of this type there is provided a plurality of radiants into which the gas flows, where it is ignited. It has been found expedient to manufacture these radiants of a particular type of clay because of the resulting heat creating efiiciency obtained. However, these radiants are fragile and easily broken and difiiculty has been experienced in assembling the radiants in the heater without injury thereto.

These radiants are in practice disposed in a vertical spaced position adjacent the back of the heater, and have been held in this position by a supporting means common to all whereby when it became necessary to insert a new radiant the supporting means for all of the radiants was disturbed, thereby sometimes resulting in a displacement and consequential breaking one or more of them.

It is therefore the primary object of my invention to provide asupporting means for the radiants which will be simple inconstruction and which will enable each radiant to be easily removed and replaced at will.'

This structure enables a broken radiant to be replaced without necessitating the disturbing of the remaining radiants and eliminating the possibility of injury thereto. The various features of construction of my invention will be made more apparent in the accompanying specification and drawings, in which:

Fig. 1 is a front elevation of a heater constructed in accordance with my invention,

Fig. 2 is a vertical section through the heater,

Fig. 3 is a transverse vertical section.

Fig. i is a fragmentary perspective view of the heater with some of the radiants removed,

Fig. 5 is a fragmentary detail section illustrating a modified form of radiant, and,

Fig. 6 is a similar view illustrating an other modification.

Referring now more particularly to Figs.

' 12 and through it to the Bunsen burners 13.

The heater is further provided with a top 15 and front plate 16 which are formed preferably of sheet or pressed metal and may be of a decorative nature as illustrated clearly in Fig. 1. Suitable legs 17 secured to the corners of the housing are used to support the heater.

Disposed within the housing is a fire back or lining of fire-brick comprising a back portion 17, a top 18 and sides 19 which may be secured together and supported within the housing in any suitable manner, this forming no part of the present invention.

Disposed in a vertical position adjacent the fire back 1? is a plurality of radiants or heating elements 20. These radiants are formed in general in the usual manner and are each in communication with one of the Bunsen burner tubes 13, the upper end of which extends upwardly through the bottom 10 and through a base plate 21 formed with a plurality of recesses 22 for the reception of the lower end of each radiant 20.

Cooperating with this base plate 21 and for removably and individually securing each radiant 21, I provide a metallic sup porting strip 23 provided with a plurality of lugs or projections 24 depending therefrom. This supporting strip preferably reposes in a recess formed in the top wall of fire-brick 18 and is secured in place by bolts 25 which pass through the fire-brick 18 as clearly illustrated in Fig. 3. The upper end of each radiant 20 is formed with a recess 26 adapted to receive the projections or lugs 24:, see particularly Figs. 2 to 4 inclusive. The length of the radiants 20 is such that a clearance is allowed between their upper ends and the lower face of the fire-brick 18 of the projection 2% being such that it still ei'igagcs the recess 26 formed in the upper end of the radiant. Consequently, the radiant is held in a vertical position which is immediately over its associated Bunsen burner tube.

In the form of radiant just described the projection or lug 2a is housed within the re cess 26 and consequently does not come into engagement with the flame when the radiant is in use. In Fig. 5 however, I have shown a radiant 27 formed with ah aperture 28 at the upper end thereof through which projects the lug or projection 2&- of the supporting plate 23. Obviously, either a recess or aperture mav be formed in the upper end of the radiants to ttCCOHlIIlOCltttG the projec tion of the supporting plate and this in accordance with the construction of theparticular radiant.

\Vhile I have illustrated as the supporting means at the top of the radiants a plate formed with a plurality of projections, it is obvious from an examination of Fig. 6 that this supporting means may be varied somewhat. In this figure the top fire-brick 29 is formed with a plurality of projections 30 preferably formed integrally therewith,

which may engage apertures 28 formed in V the upper ends of the radiants 27 as illustrated, or may engage recesses such as illustrated in Figs. 1 to l.

Obviously the supporting plates 23 may have the lugs or projections 24 cast integ al- 1y thereon or welded or brazed thereto or formed by pins threaded or otherwise secured in apertures formed in the supporting strip 23. I therefore do not wish to be limited to a particular type of supporting strip as the invention contemplates any structure whereby a plurality of pins or projections are disposed so as to be engaged by apertures or recesses formed in the top of the radiants.

In this connection the supporting plate 21.

may be modified somewhat but I have found that a plate formed with a plurality of recesscs for the reception of the lower ends of the radiants 20 is satisfactory in every respect. V

In a structure such as described herein the radiants may be individually supported in a vertical position and properly spaced one from another. It is ofextreme importance in the etlicient'operation of a heater of this type that each of the radiants be maintained in an upright position immediately over its associated Bunsen burnertube and this is positively accomplished by the structure described. It is also obvious that any one of the radiants may be removed and replaced withoutdisturbing any of the radiants already in place, and this feature is of extreme importance as it eliminates the possibility of injury to radiants which it is not necessary to disturb.

\Vhile several physical embodiments of my present invention are illustrated and described herein, I do not wish to be unnecessarily limited as to details of construetion but reserve the ri ht to make such changes as may comewithin the purview of the accompanying claims. 7

Having thus described my invention what I claim is:

1. In' a heater of the class described provided with. a clay fire brick top, a plurality of radiants, a base plate formed with recesses for supporting the lower ends of said radiants, the upper end of each radiant being formed with an opening, a supporting strip secured to the top of said heater and a plurality of lugs depending therefrom for engagement with the openings in said radiants, said lugs cooperating with' said base plate for separately and removably securing each of said radiants in a vertical position.

2. In a heater of the class described provided with a top formed of clay, a plurality of hollow heating elements, a base plate formed with a plurality of recesses for receiving the lower ends of said heating elements, gas supply means extending through said base plate and communicating with the interior of said heating elements,and a separate supporting strip provided with a plurality of projections secured to the top of said heater, the upper ends of said radiants being suitably shaped for engagement with said projections.

JACOB r. DAVIS. 

